Bluelab pH Probe KCl Storage Solution is made specifically for use with Bluelab® pH Probes and Pens. It is designed to increase response time and maximize the life of Bluelab® pH Probes and Pens.

Growth Technology pH Probe Refill & Storage - A solution designed specifically for the refill of liquid-containing pH probes. This liquid is also a storage solution.

Growth Technology pH Probe Cleaner does exactly what it says on the label as it cleans salt deposit residues left by nutrients solutions when measuring the pH.

The Growth Technology pH buffer solutions are each of a known and fixed pH - 4 and 7 respectively. These can be used to check and calibrate your pH meter.

Conductivity Standard by Growth Technology has an electrical conductivity (EC) of 2.76 ms/cm ensuring that your EC/CF meter is calibrated and that it gives the correct reading when mixing nutrient solutions.

Bluelab Conductivity Probe Care kit to keep EC meter probes clean and accurate. If dirty or contaminated, it will more than likely give an inaccurate reading, meaning your nutrient solution will not be at the optimum for healthy growth and flowering.